addiction: The process of becoming physiologically dependent on a drug; when the process is complete, the person's state is also called addiction.

advocate, advocacy groups: A person (or group of people) who actively and publicly supports a cause or goal.

carbon monoxide: CO, an odorless, colorless gas given off as a cigarette burns; when inhaled, CO attaches itself to the body's red blood cells, depriving a person of oxygen.

cardiovascular: Pertaining to the heart and blood vessels.

CDC: Centers for Disease Control and Prevention, an agency of the federal government within the Department of Health and Human Services, made up of eleven centers, whose mission is to prevent and control disease, injury, and disability in the United States.

coronary heart disease: Diseases of the heart, specifically those that affect the supply of blood to the heart muscle; often associated with heart attacks.

dependency: The state of being physically...